Deflector mechanism for threshing-cylinders



(No Model.)

D. S. GEISBR. DEFLEGTOR MECHANISM FOR THRESH'ING CYLINDERS.

No. 592,868. Patented Nov. 2, 1897.

WITNESSES: 'YNVENTOI? Q J. S. Geiaer IHIIHIIIIHHHE A TTOHN E Y5 UNITED STATES PATENT OFFICE.

DANIEL SINGER GEISER, OF WAYNESBOROUGH, PENNSYLVANIA.

DEFLECTOR MECHANISM FOR THRESHlNG-CYLINDERS.

SPECIFICATION forming part of Letters Patent No. 592,868, dated November 2, 1897. Application filed August 11, 1896. Serial No. 602,405. (No model.)

To aZZ whom it may concern.-

Beit known that I, DANIEL SINGER GEIsER, residing at WVaynesborough, in the county of Franklin and State of Pennsylvania, have invented a new and Improved Deflector Mechanism for Threshing-Cylinders, of which the following is a specification.

My invention, which relates generally to.

threshing-machines, more especially refers to improvements on the grain-deflector devices which operate in connection with the cylinder; and such invention primarily seeks to provide a mechanism of this character of a very simple and economical construction, so arranged as to utilize to the fullest extent the separating tendencies of the cylinder.

With other objects in View, which will hereinafter be particularly referred to, my invention consists in the peculiar and novel arrangement and combination of parts, such as will be first described in detail,-and then speciflcally pointed out in the appended claims, reference being had to the accompanying drawings, in which r Figure 1 is a diagrammatic section of the threshing-cylinder, my improved deflector devices being shown partly in side elevation. Fig. 2 is a diagrammatic plan view of the parts shown in Fig. 1. Fig. 3 is an enlarged plan view of a portion of the deflector devices. Fig. 4 is a transverse section taken on the line 4 4 of Fig. 1. Fig. 5 is a transverse sec tion on the line 5 5 ofFig. 3. Fig. 6 is ade-V tail section taken on the line 6 6 of Fig. 3. Fig. 7 is a view of one of the grate-bars as seen from the under or cleated side. Fig. '7 is a similar View of the same as seen from the upper or smooth side. Fig. 8 is a side elevation of a modified form of deflector-bar. Fig. 9 illustrates the tapering lock-pin and split lock-block, hereinafter referred to.

In the, drawings, A indicates a portion of the casing, B the cylinder, which may be of any approved construction, and O the concave, which may also be of the ordinary form.

D indicates my improved deflector device, which consists of a grate-like body formed of a series of separating-bars of any. desired length. These bars are arranged and extend longitudinally rearward from the cylinder, as clearly shown in Fig. 2, their front ends being suitably joined and adapted to be attached to or immediately in rear of the concave, as shown in Fig. 1, such bars forming, as it were, a bottom or wall against which the cylinder delivers the straw and grain with sufficient force to cause a separation of the straw and grain and the deflection thereof to the desired points.

The bars D, which form the grate-bottom, may be curved to conform with the contour of the cylinder at a different curvature, as shown in Fig. 1, or they may be made straight, as shown in Fig. 8, and extended rearward and up at any angle to the cylinder, as the conditions of the machine may make it most desirable, and which will give the required elevation to the straw and at the same time afford sufficient relief to the cylinder.

The bars D, which are in the nature of flat .bars, are set edgewise at such an angle and so spaced apart as to have overlapping portions cl 61, whereby to provide a flared surface d on each bar equal to about one-third its width (see Fig. 3) and extended its full length, which receives the thrust of the material thrown from the cylinder.

The under side of each bar D has a series of wedge-shaped cleats 61 which increase in depth as they near thelower edge of the bar, where they intersect at right angles the 1ongitudinal bottom flanges d which extend the full length of the bar and form with the cleats a series of pockets d on the underside of each bar D', for a purpose presently explained.

So far as described it will be seen by providing a grate-body formed of parallel bars extending longitudinally rearward from the cylinder and set edgewise or inclined to rotation of the cylinder the straw and light material will ride on the upper edge and smooth flared surface of the upper side of suchbars, while the grain and more compact articles, being thrown with more force, will thrust through the straw and be deflected to the sides as well as forwardly, thereby causing the grain to come in contact with the cleats d and effectually lodge in the immediate vicinity. To further facilitate a complete separation and deflection of the grain and straw, the bars D are arranged in two series, the adjacentor inner bars of such series being so joined as to form a double or l\- shaped central bar, the upper sides of which incline in opposite directions toward the middle of the machine, the bars of each series being inclined parallel with the inner members thereof. (See Fig. 3.) This arrangement of bars provides for a more effective and equal delivery of the straw and grain, as such are usually fed more rapidly rearward from the center of the cylinder. The bars D are of metal and have shanks (1, either singly or in groups, which shanks (Z are made to fit suitable guideways or the concave groove at the sides of the casing.

To provide a simple, easily manipulated, and inexpensive means for securing the several bars, the shank of each tooth is provided with a projection (1, adapted to engage a corresponding recess d in the adjacent shank, and hold such shanks in a suitable cross-plate F, havin a channel-way f to receive the said shanks. To securely lock the several shanks in the said channel-way, I provide a split block G, having grooves g to receive the projections of the innermost pair of shanks, which blocks have semicircular tapering grooves g, in which the tapering key II is fitted and which can be drawn up to a tight position by a nut or other means.

IVhile I prefer to use the tapering and split blocks for locking the several shanks in place, it is manifest other means, such as bearing-screws, (see dotted lines in Fig. 3,) may be employed.

By overlapping the flared bars in the manner shown such bars will serve to materially reduce the air-current, which, were there no second-angle contact members, would still have force enough to carry the light material through the grate. Thus providing the bars with the second angle or flange and setting them on an angle or incline, as before stated, prevents the cylinder from throwing anything straight through the grate, and also materially reduces the carrying force of the air as it passes through the deflector-bars. Furthermore, by arranging the several bars D in the manner shown and described a great separating force at the cylinder is provided, thereby leaving but a small amount of grain to be separated from the straw after it passes the shakers, such arrangement also providing for the delivery of the straw at any point on the shakers with a force sufiicient to dispense with rakes and pickers.

\Vhile the straw has ample surface upon which to ride, it has no cross-bars or cleats to drag or check its rearward motion. The grain and heavier material, by reason of their compact form and increased force, are dashed through the straw against the flared sides of the bars and deflected sidewise against the under-cleated side of the adjoining bars, thus providing for its freest passage from the straw and at the same time for an effectual check to its forward motion.

From the foregoing description, taken in connection with the drawings, the advantages and complete operation of my invention, it is thought, will be clearly understood.

It will be noticed my deflector has a smooth upper striking side and a pocketed under side, whereby to render it impossible for the straw to wrap or tie about the bars, and at the same time providing a positive and simple means for lodging and deflecting the grain.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In combination with a threshing-cylinder, a concave having a deflector portion, consisting of a series of flat bars extending rearwardly at right angles from the cylinder, and set edgewise, the flat sides of such bars being held vertically inclined, substantially as shown and described.

2. In combination with a threshing-cylinder, a deflector mechanism comprising a gratelike body, formed of a series of parallel bars set edgewise, having flat upper sides, and held inclined at an angle, the upper end of one bar overlapping the lower end of the adjacent bar, whereby a series of inclined longs tudinal grain-passages are provided as specifled.

3. In combination with a threshing-cylinder, a deflector consisting of a grate like body, consisting of a series of parallel bars having a smooth widened upper surface held at a vertical angle to the cylinder, an inwardly-projecting bottom flange and a series of vertical cleats, arranged to form the under face with a series of pockets substantially as shown and described.

at. A deflector mechanism for threshing-cylinders, consisting of a grate-like body formed of a series of longitudinal bars, held at a vertical angle to the cylinder whereby flat impactfaces are presented to receive the straw from the cylinder and having a series of cleats adapted to form pockets 011 the under side, to receive the grain as it is thrown back from the said flat faces as set forth.

5. The combination with the cylinder and the concave, of a socket or receiving bar held transversely at the discharge end of the coucave, a series of longitudinally rearwardly extending grate-bars, secured at one end to the socket or receiving bar and having their body portions inclined vertically and held overlapping each other and means for securing such bars substantially as and for the purposes described.

6. The combination with the cylinder, and the concave, of a series of parallel longitudinal rearwardly-extendin g grate-bars set edgewise, said series being centrally divided and having the bars at one side inclined from a vertical plane in one direction and the bars at the other side inclined in an opposite direction substantially as shown and for the purposes described.

7. The combination of the cylinder and the concave, of separating and deflecting devices forming a continuation of the concave, having longitudinal openings for the discharge of the separated grain, provided with smooth impact or straw-receiving faces, and retarding or pocket portions adapted to receive and temporarily hold the grain as it is separated from the straw by contact with the said smooth faces as set forth.

8. The combination with the cylinder, and the concave of a transverse socket-bar, held at the discharge end of the concave, a series of longitudinally extending bars having shank portions at their inner ends adapted to fit the socket-bar, said longitudinal bars having their outer ends free and their body portions held inclined toward the center of the cylinder all substantially as shown and for the purposes described.

9. The combination in a mechanism for the purposes described,with the socket-bar E and the bars D, having shank members fitting the smooth upper faces, said bars curving longitudinally upward from the cylinder end,

whereby to produce a concave section having inclined grain-passages, the lower portions of which are covered by the upper ends of the bars, as specified.

DANIEL SIN GER GEISER.

Witnesses:

J H. DEARDORFF, S. M. STOLER. 

